According to the website DownDetector, problems with the network began to appear at just after 4am today – Thursday, December 6.

The most recent update of their progress was provided on the O2 UK Twitter account just after 12pm, it said that they are working closely with the 3rd party suppliers to try and fix the problem.

The company has described it as a ‘top priority’ and ahs apologised for the inconvenience, but an estimated time of when the O2 network will be working again hasn’t been given.

You can keep track of the O2 Network and check whether there are any updates by going to the O2 Status website.

Outage Update: Our teams are working closely with one of our 3rd party suppliers who has identified an issue in their system which has impacted mobile services globally. This is our top priority and we are really sorry. Get updates here: https://t.co/5oS7qap2bj